CN204612228U - A kind of low temperature heat system - Google Patents
A kind of low temperature heat system Download PDFInfo
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- CN204612228U CN204612228U CN201520119382.XU CN201520119382U CN204612228U CN 204612228 U CN204612228 U CN 204612228U CN 201520119382 U CN201520119382 U CN 201520119382U CN 204612228 U CN204612228 U CN 204612228U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to a kind of low temperature heat system.Also do not have a kind of system to arrange flexibly at present to switch at any time, both meet energy-saving and emission-reduction requirement, low temperature heat system less on generated energy impact again.Feature of the present utility model is: comprise 1# low pressure (LP) cylinder, 2# low pressure (LP) cylinder, 1# condenser, 2# condenser, heat supply network water main pipe, heat pump cycle water pump, draw gas drain water piping, absorption heat pump, recirculated water main water outlet pipe, cooling tower and heat pump water inlet pipe, 1# low pressure (LP) cylinder is connected with 1# condenser, 2# low pressure (LP) cylinder is connected with 2# condenser, one end of heat supply network water main pipe is connected on circulation pump of heat-supply network, the drain water piping that draws gas is connected on absorption heat pump, one end of recirculated water main water outlet pipe is connected on cooling tower, one end of heat pump water inlet pipe is connected in recirculated water main water outlet pipe.System of the present utility model arranges flexibly and can switch at any time, has both met energy-saving and emission-reduction requirement, less on generated energy impact again.
Description
Technical field
The utility model relates to a kind of low temperature heat system, be specifically related to a kind of heat supply network heating system and residual-heat utilization method of wet type cooling unit steam power plant, be particularly useful for the two low pressure (LP) cylinder thermal power plant unit of 300MW grade or the 600MW grade double pressure condenser thermal power plant unit that are changed thermal power plant unit by pure condensate unit.
Background technology
In the last few years, on the one hand along with the fast development of concentrated supply of heating in the city, the pressure reduced discharging along with energy saving for power plants is on the other hand upgraded with examination, the circulating water afterheat utilizing absorption heat pump to reclaim steam turbine in thermal power plant has obtained fairly large application, but the type of current application is steam extraction heat supply unit substantially.Absorption heat pump reclaims turbine circulation water waste heat needs the recirculated water leaving water temperature improving whole unit, unit exhaust steam pressure correspondingly can be caused to raise, vacuum declines, certain influence is had to the generating capacity of unit, but because unit itself is designed to extraction for heat supply, low pressure (LP) cylinder exhaust steam flow is less, and therefore this impact is relatively little.
The pure condensate unit of increasing 300MW grade or even 600MW grade makes thermal power plant unit into by the punching mode such as to draw gas, after this kind of unit makes thermal power plant unit into, because extraction flow is less, generally only have about 60% of same capacity parameter steam extraction heat supply unit, low pressure (LP) cylinder exhaust steam flow is comparatively large, such as, change thermal power plant unit for 600MW pure condensate, during maximum extraction for heat supply operating mode, low pressure (LP) cylinder exhaust steam flow still can reach 700t/h, preresearch estimates, to whole recovery waste heat, power plant at least needs reception 2,000 ten thousand m
2above, and generally the area of heat-supply service of steam power plant's reception of scale is substantially at 1,000 ten thousand m
2below, therefore restrict by heating load, be difficult to realize whole recovery waste heat.And reclaiming according to conventional absorption heat pump techniques scheme the circulating water afterheat that pure condensate changes thermal power plant unit, the low pressure (LP) cylinder exhaust steam flow changing thermal power plant unit due to pure condensate is large especially, and unit vacuum declines and will significantly improve the impact of generated energy.
Be limited to steam power plant's area of heat-supply service on the one hand, be difficult to realize whole recovery waste heat; Improve again more on the impact of unit generation amount on the other hand, therefore 300MW or 600MW pure condensate is changed to the unit of heat supply, because low pressure (LP) cylinder exhaust steam flow is comparatively large, adopt the economy of conventional absorption heat pump techniques to be affected.If publication date is on July 10th, 2013, publication number is in the Chinese patent of CN203050815U, disclose a kind of residual heat of electric power plant retracting device based on absorption heat pump, this residual heat of electric power plant retracting device comprises sucking condensing turbine, condenser, low-pressure heater and high temperature and high pressure steam pipe, sucking condensing turbine is connected on high temperature and high pressure steam pipe, condenser is connected with sucking condensing turbine, absorption heat pump is utilized to reclaim circulating water afterheat, this residual heat of electric power plant retracting device is for the sucking condensing turbine of single condenser, be not suitable for being applied to the two low pressure (LP) cylinder condenser unit of 300MW or 600MW that pure condensate changes heat supply.And for example publication date is on May 9th, 2012, publication number is in the Chinese patent of CN202216315U, disclose a kind of circulating-water tandem, it comprises sucking condensing turbine, water-cooled condenser, vapor-water heat exchanger and absorption heat pump, this circulating-water tandem is also utilize absorption heat pump to reclaim circulating water afterheat, but it is equally only for the sucking condensing turbine of single condenser, be not suitable for being applied to the two low pressure (LP) cylinder condenser unit of 300MW or 600MW that pure condensate changes heat supply.
In sum, also there is no a kind of reasonable in design at present, system arranges flexibly and can switch at any time, has both met energy-saving and emission-reduction requirement, is suitable for the low temperature heat system that pure condensate changes the two low pressure (LP) cylinder condenser thermal power plant unit of 300MW or 600MW grade of heat supply again on generated energy impact is less.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and a kind of reasonable in design is provided, system arranges flexibly and can switch at any time, both met energy-saving and emission-reduction requirement, be suitable on generated energy impact is less the low temperature heat system that pure condensate changes the two low pressure (LP) cylinder condenser thermal power plant unit of 300MW or 600MW grade of heat supply again.
The technical scheme in the invention for solving the above technical problem is: the design feature of this low temperature heat system is: comprise 1# low pressure (LP) cylinder, 2# low pressure (LP) cylinder, 1# condenser, 2# condenser, cooling tower, water circulating pump, heat exchangers for district heating, circulation pump of heat-supply network, absorption heat pump, heat pump cycle water pump, the female pipe of recirculated water water inlet, recirculated water main water outlet pipe, heat supply network backwater mother pipe, heat supply network water main pipe, 2# outgoing condensate water pipe, left side recirculated water exit branch, heat pump water inlet pipe, right side recirculated water water inlet pipe, lower tower recirculated water enters 1# condenser arm, heating extraction line, draw gas drain water piping, recirculated water main water outlet pipe isolating valve, recirculated water isolating valve, lower tower recirculated water enters 1# condenser isolating valve, left side recirculated water water outlet isolating valve, recirculated water enters heat pump isolating valve, and right side recirculated water water inlet isolating valve, described 1# low pressure (LP) cylinder is connected with 1# condenser, described 2# low pressure (LP) cylinder is connected with 2# condenser, the female pipe of described heat supply network backwater is connected on absorption heat pump, one end of the female pipe of this heat supply network backwater is connected on circulation pump of heat-supply network, one end of described heat supply network water main pipe is connected on circulation pump of heat-supply network, described heat exchangers for district heating is arranged in heat supply network water main pipe, the described drain water piping that draws gas is connected on absorption heat pump, described absorption heat pump and heat exchangers for district heating are all connected on heating extraction line, described draw gas drain water piping and the cooperation of heating extraction line, intake one end of female pipe of described recirculated water is connected on cooling tower, the intake other end of female pipe of this recirculated water is connected on 2# condenser, described water circulating pump is arranged on recirculated water and intakes on female pipe, one end of described recirculated water main water outlet pipe is connected on cooling tower, the other end of this recirculated water main water outlet pipe is connected on 1# condenser, described recirculated water main water outlet pipe isolating valve, is arranged in recirculated water main water outlet pipe, one end of described 2# outgoing condensate water pipe is connected on 2# condenser, the other end of this 2# outgoing condensate water pipe is connected on 1# condenser, described recirculated water isolating valve, is arranged on 2# outgoing condensate water pipe, one end of described left side recirculated water exit branch is connected on 2# outgoing condensate water pipe, on the left of this, one end of recirculated water exit branch is between 2# condenser and recirculated water isolating valve, the other end of described left side recirculated water exit branch is connected in recirculated water main water outlet pipe, on the left of this, the other end of recirculated water exit branch is between cooling tower and recirculated water main water outlet pipe isolating valve, described left side recirculated water water outlet isolating valve, is arranged on the recirculated water exit branch of left side, one end of described heat pump water inlet pipe is connected in recirculated water main water outlet pipe, one end of this heat pump water inlet pipe is between 1# condenser and recirculated water main water outlet pipe isolating valve, the other end of described heat pump water inlet pipe is connected on absorption heat pump, described recirculated water enters heat pump isolating valve, and is arranged on heat pump water inlet pipe, one end of described right side recirculated water water inlet pipe is connected on absorption heat pump, on the right side of this, recirculated water water inlet pipe and heat pump water inlet pipe coordinate, the other end of described right side recirculated water water inlet pipe is connected on 2# outgoing condensate water pipe, on the right side of this, the other end of recirculated water water inlet pipe is between 1# condenser and recirculated water isolating valve, described right side recirculated water water inlet isolating valve, is arranged on the recirculated water water inlet pipe of right side, one end that described lower tower recirculated water enters 1# condenser arm is connected to recirculated water and intakes on female pipe, this lower tower recirculated water enters one end of 1# condenser arm between 2# condenser and water circulating pump, the other end that described lower tower recirculated water enters 1# condenser arm is connected on the recirculated water water inlet pipe of right side, this lower tower recirculated water enters the other end of 1# condenser arm between heat pump cycle water pump and right side recirculated water water inlet isolating valve, described lower tower recirculated water enters 1# condenser isolating valve, and is arranged on lower tower recirculated water and enters on 1# condenser arm.
As preferably, recirculated water main water outlet pipe isolating valve, described in the utility model, recirculated water isolating valve, lower tower recirculated water enter 1# condenser isolating valve, left side recirculated water water outlet isolating valve, recirculated water enter heat pump isolating valve, and right side recirculated water water inlet isolating valve, is one in motor-driven valve, hand-operated valve, pneumatic operated valve and hydraulic valve.
As preferably, 1# condenser described in the utility model and 2# condenser are the condenser of identical parameters or are double pressure condenser.
As preferably, heat supply network water main pipe described in the utility model is provided with a bypass in parallel with heat exchangers for district heating.
The utility model compared with prior art, has the following advantages and effect: reasonable in design, and design is unique, uses flexibly, can switch at any time, both meet energy-saving and emission-reduction requirement, less on generated energy impact again, can produce good economic and social benefits.Owing to needing the temperature improving whole recirculated water during absorption heat pump recovery waste heat, unit vacuum is caused to be deteriorated, and 300MW or 600MW pure condensate is changed to the thermal power plant unit of heat supply, because its exhaust steam flow is larger, now will be more obvious on the impact of generated energy, only recovery section circulating water afterheat, whole project economics is poor; Two condenser circulations, by retrofitted unit circulation, are separated by the utility model, reclaim the heat of a condenser, then do not have an impact to the vacuum of another condenser.Such as there being the 300MW pure condensate of two low pressure (LP) cylinders to change thermal power plant unit, the utility model technology is adopted to reclaim the waste heat amount of a condenser, then because circulating water temperature improves the half impact of unit generation amount being only to prior art caused.
Just latter stage, extraneous thermic load was less in heating for the utility model, when can not reclaim the heat of #1 condenser completely, recirculated water outlet valve opens certain aperture according to circulating water temperature, #1 condenser a part of recirculated water is out made to return cooling tower cooling, recirculated water after cooling enters #1 condenser arm via lower tower recirculated water again and is back to right side recirculated water water inlet pipe, enter #1 condenser after mixing with absorption heat pump recirculated water out, #2 condenser vacuum is not affected.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment low temperature heat system.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
Embodiment.
See Fig. 1, low temperature heat system in the present embodiment comprises 1# low pressure (LP) cylinder 1, 2# low pressure (LP) cylinder 2, 1# condenser 3, 2# condenser 4, cooling tower 5, water circulating pump 6, heat exchangers for district heating 7, circulation pump of heat-supply network 8, absorption heat pump 9, heat pump cycle water pump 10, recirculated water is intake female pipe 11, recirculated water main water outlet pipe 12, the female pipe 13 of heat supply network backwater, heat supply network water main pipe 14, 2# outgoing condensate water pipe 15, left side recirculated water exit branch 16, heat pump water inlet pipe 17, right side recirculated water water inlet pipe 18, lower tower recirculated water enters 1# condenser arm 19, heating extraction line 20, draw gas drain water piping 21, recirculated water main water outlet pipe isolating valve, 22, recirculated water isolating valve, 23, lower tower recirculated water enters 1# condenser isolating valve, 24, left side recirculated water water outlet isolating valve, 25, recirculated water enters heat pump isolating valve, 26 and right side recirculated water water inlet isolating valve, 27.
1# low pressure (LP) cylinder 1 in the present embodiment is connected with 1# condenser 3, 2# low pressure (LP) cylinder 2 is connected with 2# condenser 4, the female pipe 13 of heat supply network backwater is connected on absorption heat pump 9, one end of the female pipe 13 of this heat supply network backwater is connected on circulation pump of heat-supply network 8, one end of heat supply network water main pipe 14 is connected on circulation pump of heat-supply network 8, heat exchangers for district heating 7 is arranged in heat supply network water main pipe 14, the drain water piping 21 that draws gas is connected on absorption heat pump 9, absorption heat pump 9 and heat exchangers for district heating 7 are all connected on heating extraction line 20, draw gas drain water piping 21 and heating extraction line 20 coordinates, after driving steam in heating extraction line 20 provides power to absorption heat pump 9, drive hydrophobic the discharge from the drain water piping 21 that draws gas of steam formation.
In the present embodiment, intake one end of female pipe 11 of recirculated water is connected on cooling tower 5, the intake other end of female pipe 11 of this recirculated water is connected on 2# condenser 4, water circulating pump 6 is arranged on recirculated water and intakes on female pipe 11, one end of recirculated water main water outlet pipe 12 is connected on cooling tower 5, the other end of this recirculated water main water outlet pipe 12 is connected on 1# condenser 3, and recirculated water main water outlet pipe isolating valve, 22 is arranged in recirculated water main water outlet pipe 12.One end of 2# outgoing condensate water pipe 15 is connected on 2# condenser 4, the other end of this 2# outgoing condensate water pipe 15 is connected on 1# condenser 3, recirculated water isolating valve, 23 is arranged on 2# outgoing condensate water pipe 15, one end of left side recirculated water exit branch 16 is connected on 2# outgoing condensate water pipe 15, on the left of this, one end of recirculated water exit branch 16 is between 2# condenser 4 and recirculated water isolating valve, 23, the other end of left side recirculated water exit branch 16 is connected in recirculated water main water outlet pipe 12, on the left of this, the other end of recirculated water exit branch 16 is between cooling tower 5 and recirculated water main water outlet pipe isolating valve, 22, left side recirculated water water outlet isolating valve, 25 is arranged on left side recirculated water exit branch 16.
In the present embodiment, one end of heat pump water inlet pipe 17 is connected in recirculated water main water outlet pipe 12, one end of this heat pump water inlet pipe 17 is between 1# condenser 3 and recirculated water main water outlet pipe isolating valve, 22, the other end of heat pump water inlet pipe 17 is connected on absorption heat pump 9, recirculated water enters heat pump isolating valve, 26 and is arranged on heat pump water inlet pipe 17, one end of right side recirculated water water inlet pipe 18 is connected on absorption heat pump 9, on the right side of this, recirculated water water inlet pipe 18 and heat pump water inlet pipe 17 coordinate, medium in heat pump water inlet pipe 17 can arrive right side recirculated water water inlet pipe 18 after absorption heat pump 9.The other end of right side recirculated water water inlet pipe 18 is connected on 2# outgoing condensate water pipe 15, on the right side of this, the other end of recirculated water water inlet pipe 18 is between 1# condenser 3 and recirculated water isolating valve, 23, and right side recirculated water water inlet isolating valve, 27 is arranged on right side recirculated water water inlet pipe 18.
One end that under the present embodiment, tower recirculated water enters 1# condenser arm 19 is connected to recirculated water and intakes on female pipe 11, this lower tower recirculated water enters one end of 1# condenser arm 19 between 2# condenser 4 and water circulating pump 6, the other end that lower tower recirculated water enters 1# condenser arm 19 is connected on right side recirculated water water inlet pipe 18, the other end that this lower tower recirculated water enters 1# condenser arm 19 is between heat pump cycle water pump 10 and right side recirculated water water inlet isolating valve, 27, and lower tower recirculated water enters 1# condenser isolating valve, 24 and is arranged on lower tower recirculated water and enters on 1# condenser arm 19.
Recirculated water main water outlet pipe isolating valve, 22 in the utility model, recirculated water isolating valve, 23, lower tower recirculated water enter 1# condenser isolating valve, 24, left side recirculated water water outlet isolating valve, 25, recirculated water enters heat pump isolating valve, 26 and right side recirculated water water inlet isolating valve, 27 can for the one in motor-driven valve, hand-operated valve, pneumatic operated valve and hydraulic valve; 1# condenser 3 and 2# condenser 4 can be the condenser of identical parameters or be double pressure condenser, what illustrate in the present embodiment is double pressure condenser, such as 1# condenser 3 can be high back pressure condenser, 2# condenser 4 can be low back pressure condenser, if 1# condenser 3 and 2# condenser 4 identical parameters condenser, low temperature heat system slightly changes, and this is common practise to those skilled in the art, so place repeats no more; Heat supply network water main pipe 14 can be provided with a bypass in parallel with heat exchangers for district heating 7.Low temperature heat system in the utility model also can by 1# low pressure (LP) cylinder 1, 2# low pressure (LP) cylinder 2, 1# condenser 3, 2# condenser 4, cooling tower 5, water circulating pump 6, heat exchangers for district heating 7, circulation pump of heat-supply network 8, absorption heat pump 9, heat pump cycle water pump 10, recirculated water is intake female pipe 11, recirculated water main water outlet pipe 12, the female pipe 13 of heat supply network backwater, heat supply network water main pipe 14, 2# outgoing condensate water pipe 15, left side recirculated water exit branch 16, heat pump water inlet pipe 17, right side recirculated water water inlet pipe 18, lower tower recirculated water enters 1# condenser arm 19, heating extraction line 20, draw gas drain water piping 21, recirculated water main water outlet pipe isolating valve, 22, recirculated water isolating valve, 23, lower tower recirculated water enters 1# condenser isolating valve, 24, left side recirculated water water outlet isolating valve, 25, recirculated water enters heat pump isolating valve, 26 and right side recirculated water water inlet isolating valve, 27 forms.
The residual-heat utilization method of the present embodiment low temperature heat system is as follows: when low temperature heat system is run in the operating mode that heats, recirculated water isolating valve, 23 is closed, and 1# condenser 3 and 2# condenser 4 form two autonomous systems, when absorption heat pump 9 reclaims the circulating water afterheat of 1# condenser 3 entirely, lower tower recirculated water enters 1# condenser isolating valve, 24 and recirculated water main water outlet pipe isolating valve, 22 is closed, improve temperature recirculated water from 1# condenser 3 out after enter absorption heat pump 9 through overheated pump water inlet arm 17, the heat in recirculated water is reclaimed under the driving vapor action of absorption heat pump 9 in heating extraction line 20, be supplied to the hot net water in the female pipe 13 of heat supply network backwater, hot net water after heating is squeezed in heat exchangers for district heating 7 by circulation pump of heat-supply network 8 and is heated further, the recirculated water of 2# condenser 4 enters in recirculated water main water outlet pipe 12 by left side recirculated water exit branch 16, deliver to after cooling tower 5 cools and send 2# condenser 4 back to by water circulating pump 6 again, when heating, just latter stage, extraneous thermal load demands was less, when absorption heat pump 9 can not reclaim the circulating water afterheat of 1# condenser 3 completely, on 1# condenser 3 a part of recirculated water out, cooling tower 5 is lowered the temperature, this at present tower recirculated water enter 1# condenser isolating valve, 24 and recirculated water main water outlet pipe isolating valve, 22 is opened, according to the circulating water temperature entering absorption heat pump 9, regulated the circulating water flow of upper cooling tower 5 by the aperture of controlled circulation water main water outlet pipe isolating valve, 22.Residual-heat utilization method in the utility model only has impact to the vacuum of 1# condenser 3, does not have an impact to the vacuum of 2# condenser 4, makes the impact of vacuum on unit generation amount less than traditional approach.
Low temperature heat system in the utility model is normally changed 300MW grade thermal power plant unit or the 600MW grade thermal power plant unit of thermal power plant unit by pure condensate unit, the pure condensate machine of this 300MW grade and the pure condensate unit of 600MW grade can make thermal power plant unit into by the punching mode of drawing gas.
Left side of the present utility model recirculated water exit branch 16, right side recirculated water water inlet pipe 18, left side recirculated water water outlet isolating valve, 25 and right side recirculated water water inlet isolating valve, 27 in " left side " and " right side " be only used to describe convenience, be not limited only to left side and the right side of locus.
In addition, it should be noted that, the specific embodiment described in this description, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this description is only to the explanation of the utility model structure example.The equivalence change that structure, feature and principle described in all foundation the utility model inventional idea are done or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (4)
1. a low temperature heat system, it is characterized in that: comprise 1# low pressure (LP) cylinder, 2# low pressure (LP) cylinder, 1# condenser, 2# condenser, cooling tower, water circulating pump, heat exchangers for district heating, circulation pump of heat-supply network, absorption heat pump, heat pump cycle water pump, the female pipe of recirculated water water inlet, recirculated water main water outlet pipe, heat supply network backwater mother pipe, heat supply network water main pipe, 2# outgoing condensate water pipe, left side recirculated water exit branch, heat pump water inlet pipe, right side recirculated water water inlet pipe, lower tower recirculated water enters 1# condenser arm, heating extraction line, draw gas drain water piping, recirculated water main water outlet pipe isolating valve, recirculated water isolating valve, lower tower recirculated water enters 1# condenser isolating valve, left side recirculated water water outlet isolating valve, recirculated water enters heat pump isolating valve, and right side recirculated water water inlet isolating valve, described 1# low pressure (LP) cylinder is connected with 1# condenser, described 2# low pressure (LP) cylinder is connected with 2# condenser, the female pipe of described heat supply network backwater is connected on absorption heat pump, one end of the female pipe of this heat supply network backwater is connected on circulation pump of heat-supply network, one end of described heat supply network water main pipe is connected on circulation pump of heat-supply network, described heat exchangers for district heating is arranged in heat supply network water main pipe, the described drain water piping that draws gas is connected on absorption heat pump, described absorption heat pump and heat exchangers for district heating are all connected on heating extraction line, described draw gas drain water piping and the cooperation of heating extraction line, intake one end of female pipe of described recirculated water is connected on cooling tower, the intake other end of female pipe of this recirculated water is connected on 2# condenser, described water circulating pump is arranged on recirculated water and intakes on female pipe, one end of described recirculated water main water outlet pipe is connected on cooling tower, the other end of this recirculated water main water outlet pipe is connected on 1# condenser, described recirculated water main water outlet pipe isolating valve, is arranged in recirculated water main water outlet pipe, one end of described 2# outgoing condensate water pipe is connected on 2# condenser, the other end of this 2# outgoing condensate water pipe is connected on 1# condenser, described recirculated water isolating valve, is arranged on 2# outgoing condensate water pipe, one end of described left side recirculated water exit branch is connected on 2# outgoing condensate water pipe, on the left of this, one end of recirculated water exit branch is between 2# condenser and recirculated water isolating valve, the other end of described left side recirculated water exit branch is connected in recirculated water main water outlet pipe, on the left of this, the other end of recirculated water exit branch is between cooling tower and recirculated water main water outlet pipe isolating valve, described left side recirculated water water outlet isolating valve, is arranged on the recirculated water exit branch of left side, one end of described heat pump water inlet pipe is connected in recirculated water main water outlet pipe, one end of this heat pump water inlet pipe is between 1# condenser and recirculated water main water outlet pipe isolating valve, the other end of described heat pump water inlet pipe is connected on absorption heat pump, described recirculated water enters heat pump isolating valve, and is arranged on heat pump water inlet pipe, one end of described right side recirculated water water inlet pipe is connected on absorption heat pump, on the right side of this, recirculated water water inlet pipe and heat pump water inlet pipe coordinate, the other end of described right side recirculated water water inlet pipe is connected on 2# outgoing condensate water pipe, on the right side of this, the other end of recirculated water water inlet pipe is between 1# condenser and recirculated water isolating valve, described right side recirculated water water inlet isolating valve, is arranged on the recirculated water water inlet pipe of right side, one end that described lower tower recirculated water enters 1# condenser arm is connected to recirculated water and intakes on female pipe, this lower tower recirculated water enters one end of 1# condenser arm between 2# condenser and water circulating pump, the other end that described lower tower recirculated water enters 1# condenser arm is connected on the recirculated water water inlet pipe of right side, this lower tower recirculated water enters the other end of 1# condenser arm between heat pump cycle water pump and right side recirculated water water inlet isolating valve, described lower tower recirculated water enters 1# condenser isolating valve, and is arranged on lower tower recirculated water and enters on 1# condenser arm.
2. low temperature heat system according to claim 1, is characterized in that: described recirculated water main water outlet pipe isolating valve, recirculated water isolating valve, lower tower recirculated water enter 1# condenser isolating valve, left side recirculated water water outlet isolating valve, recirculated water enter heat pump isolating valve, and right side recirculated water water inlet isolating valve, is one in motor-driven valve, hand-operated valve, pneumatic operated valve and hydraulic valve.
3. low temperature heat system according to claim 1 and 2, is characterized in that: described 1# condenser and 2# condenser are the condenser of identical parameters or are double pressure condenser.
4. low temperature heat system according to claim 1 and 2, is characterized in that: described heat supply network water main pipe is provided with a bypass in parallel with heat exchangers for district heating.
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| CN106196229A (en) * | 2016-08-30 | 2016-12-07 | 中国能源建设集团广东省电力设计研究院有限公司 | Air-introduced machine steam turbine low-vacuum-operating circulating water heating system and power-economizing method thereof |
| CN106225039A (en) * | 2016-08-30 | 2016-12-14 | 中国能源建设集团广东省电力设计研究院有限公司 | Feed pump turbine low-vacuum-operating circulating water heating system and power-economizing method thereof |
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| CN104807245A (en) * | 2015-02-28 | 2015-07-29 | 华电电力科学研究院 | Low-temperature afterheat using system and afterheat using method |
| CN104807245B (en) * | 2015-02-28 | 2017-09-19 | 华电电力科学研究院 | A kind of low temperature heat system and residual-heat utilization method |
| CN105570861A (en) * | 2016-02-24 | 2016-05-11 | 华电电力科学研究院 | Energy cascade utilization device and method for extraction steam heating system |
| CN105570861B (en) * | 2016-02-24 | 2017-12-15 | 华电电力科学研究院 | A kind of cascaded utilization of energy apparatus and method for extraction for heat supply system |
| CN106196229A (en) * | 2016-08-30 | 2016-12-07 | 中国能源建设集团广东省电力设计研究院有限公司 | Air-introduced machine steam turbine low-vacuum-operating circulating water heating system and power-economizing method thereof |
| CN106225039A (en) * | 2016-08-30 | 2016-12-14 | 中国能源建设集团广东省电力设计研究院有限公司 | Feed pump turbine low-vacuum-operating circulating water heating system and power-economizing method thereof |
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